Gear housing for spinning and twisting machines



Aug. 11. 1925.

l F. l.. cRocKETT GER HOUSING FOR SPINNING AND TWISTING MACHINESA Filed Sept. 20. 1924 [N VEN TOR.' WM @mie/*t vau iso

Patented Aug. 1l, 1925.

UNITED STATES 1,549,346l sereniv orsi-Sca.

FRANK L. CIROGKETT, OF EAST DOUGLAS, MASSACHUSETTS, ASSIGNOR TO `VVIlI-IITIN 5 MACHINE WORKS, OF WHITINSVILLE, MASSACHUSETTS, A C'ORPORATIO'N 0F MASSACHUSETTS.

GEAR HOUSING FOR SPINNING AND TWISTING MACHINES.

Application filed September 20, 1924. SeriaI No. 738,841.

To all whom it may concern:

Be it known that I, FRANK L. Cnooiin'r'r, a citizen of the United States, and a resident of East Douglas, in the county of VVorcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Gear Housings for Spinning and Twisting Machines, of which the following is a specification.

My invention relates to spinning and twisting' machines, and particularly to locking mechanism for head end doors of the type shown in my co-pending application filed J an. 23, 1924, Serial Number 687,943.

The object of my invention is to provide a locking mechanism, to be combined with the head end doors to lock the same in closed position when the machine is in operation, and to prevent the starting of the machine while one or both doors are open.

In my locking mechanism, as shown in the drawings, and hereinafter described, the head end doors are prevented from being opened While the machine is in operation, and if either or both of the doors should be open, the machine cannot be started until the doors are closed. ylhe starting of the machine through the operation of the shipper mechanism, causes the locking mechanism to securely lock the doors and remain locked while the machine is in operation and the stopping of the machine, through the operation of the shipper, the doors are unlocked. Y

My invention will be understood by reference to the drawings in vwhich Figure 1 is an end elevation of the box-end of a spinning machine showing one of the end doors closed and the other open. The upper panel of the frame is broken away showing in full lines the locking mechanism of the closed door and in dotted lines the locking mechanisrn of the open door. Figure 2 is a sectional elevation on line 22 of Figure 1. Figure 3 is an enlarged sectional plan of the box-end showing the position of my improved door locking mechanism when the driving belt is on the loose pulley and consequently the machine is stopped.

In the drawings, the open side of the boxend 1 is closed by an upper panel or cover 2 and a lower panel 3, the space between them being covered by a third panel fl. All of these panels are securely mounted on the box-end by screws so that any or all of them may be removed when desirable. The top of the panel 4 has a semi-circular opening 5 so located that access may be had to the change gearing within the box-end. The opening 5 is covered by two quadrant shape doors 6 and 7 each serving as a cover for one half of the semi-circular opening 5 and are pivotally supported at their centres on studs' 3 and 9 respectively, swinging thereon in a plane parallel to the face of thel end. These studs are. fixedly stationed on the outer arm 10 of a yoke member bolted to the back side of the box-end by bolts 11 and 12. The yoke member is preferably made with two depending arms 10 and 13 connected together by the cross piece 14: which is shown broken apartin Figure 3 in order to more clearly show the location of the belt shipper rod 15 slidably mounted in bearings located in the arms 1()` and 13. Fixed to the outer end of the shipper rod 15 is the belt guide 16 which ships the driving belt 17 between the driving pulley 18 and loose pulley 19 operatively connected with the machines driving shaft 20.

Each of the doors 6 and 7 is provided with a stud 21 preferably held in a bracket 22 bolted to the inner sides of the door. Each stud is connected by a link member 23 to an arm 24 fixed to a shaft 25 revolvable in bearings formed in the arms of the yoke member. Each shaft is provided with an abutting member 26 adjustably mounted thereon. Acting in conjunction with the abutting members is blocking member 27 fastened to the shipper rod 15.

In operation of the machine with the doors closed and the driving belt on the tight pulley 18 the blocking member 27 is located as in dotted lines 28 in Figure 3 and the abutting member 26 as is shown in full lines in Figure 1. lVith the members thus situated it is impossible to open the door because the shaft 25 cannot turn with the member 26 abutting against the member 28. Now if the `operative desires to open a door he stops the motion of the machine by shipping the belt onto the loose pulley 19 by means of the shipper rod 15 thus moving the blocking member 27 from the path of the abutting member' 26 when the doorA may be swung open and held fully opened by suitable means, preferably by a hook 29 suspended from the upper panel 2. While the door is open it is impossible to start the machine in motion because the shipper rod is prevented from moving by the member 27 abutting against the end of the member 26.

It will be readily understood that minor changes in the size, form and construction oi' the various parts of my improved locking mechanism can be made and substituted for those herein shown and described, Without departing from the spirit of my invention, the scope of which is set forth in the appended claim.

What I claim is:

In a machine having a. box-end with panel swinging in a plane parallel to the face of the end, a belt shipper rod, a blocking member mounted on s ipper rod, a ber supporting the shipper Y a shaft revolvable in bearings Supported by the yoke, an abuttin member on the shaft,lan actuating arm Xed to the shaft, a stud liXed to the panel and a link member connecting said stud With said actuating arm.

In testimony whereof, I have signed this specification.

E RANK L. CROCKETT. 

